ABB 102073G01K 102074G01K Printed Circuit Board

ABB 102073G01K and 102074G01K Printed Circuit Boards are Rev-D central interconnect modules in ABB’s ESS-A-O family, designed for use in ESS-A-O 1970 configurations. These PCBs provide the copper traces and mounting points that support the module’s electronics, serving as the core interconnect platform within the ABB equipment. Sourcing this board requires matching the exact part number to ensure compatibility with the original ABB connectors and mounting footprints used in the 1970 ESS-A-O assembly. The ABB branding signals conformance to ABB’s PCB manufacturing and integration standards, including documentation, service support, and replacement practices for legacy ESS-A-O systems. When evaluating repair or replacement, verify that the target system specifies either 102073G01K or 102074G01K and that the Rev-D revision aligns with the installed hardware.